Finding the Fourth Proportional to 72,545.99, 108,805.49 and 30,414.65
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Solution
The fourth proportional to 72,545.99, 108,805.49 and 30,414.65 is: 45,616.32
Step by Step Solution
- Step 1: Write the proportion equation
72,545.99 : 108,805.49 = 30,414.65 : x - Step 2: Convert to fraction form
72,545.99/108,805.49 = 30,414.65/x - Step 3: Cross multiply
72,545.99x = 108,805.49 × 30,414.65 - Step 4: Simplify right side
72,545.99x = 3,309,280,744.36 - Step 5: Solve for x
x = 3,309,280,744.36/72,545.99 - Step 6: Final answer
x = 45,616.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.